diff options
| author | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2017-10-08 22:39:59 -0300 |
|---|---|---|
| committer | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2017-10-08 22:39:59 -0300 |
| commit | c82e3b3b2de0633317ec8fc85925e91422820597 (patch) | |
| tree | 96567416ce23c5ce85601f9cedc3a94bb1c55cba /BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java | |
| parent | b3ac1c8690c3e14c879913e5dcc03a5f5e14876e (diff) | |
Start splitting into maven modules
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java b/BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java deleted file mode 100644 index 142057c..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/data/ListHolder.java +++ /dev/null @@ -1,104 +0,0 @@ -package bjc.utils.data; - -import java.util.function.Function; -import java.util.function.UnaryOperator; - -import bjc.utils.data.internals.BoundListHolder; -import bjc.utils.funcdata.FunctionalList; -import bjc.utils.funcdata.IList; - -/** - * A holder that represents a set of non-deterministic computations - * - * @author ben - * - * @param <ContainedType> - * The type of contained value - */ -public class ListHolder<ContainedType> implements IHolder<ContainedType> { - private IList<ContainedType> heldValues; - - /** - * Create a new list holder - * - * @param values - * The possible values for the computation - */ - @SafeVarargs - public ListHolder(final ContainedType... values) { - heldValues = new FunctionalList<>(); - - if (values != null) { - for (final ContainedType containedValue : values) { - heldValues.add(containedValue); - } - } - } - - private ListHolder(final IList<ContainedType> toHold) { - heldValues = toHold; - } - - @Override - public <BoundType> IHolder<BoundType> bind(final Function<ContainedType, IHolder<BoundType>> binder) { - final IList<IHolder<BoundType>> boundValues = heldValues.map(binder); - - return new BoundListHolder<>(boundValues); - } - - @Override - public <NewType> Function<ContainedType, IHolder<NewType>> lift(final Function<ContainedType, NewType> func) { - return val -> { - return new ListHolder<>(new FunctionalList<>(func.apply(val))); - }; - } - - @Override - public <MappedType> IHolder<MappedType> map(final Function<ContainedType, MappedType> mapper) { - final IList<MappedType> mappedValues = heldValues.map(mapper); - - return new ListHolder<>(mappedValues); - } - - @Override - public IHolder<ContainedType> transform(final UnaryOperator<ContainedType> transformer) { - heldValues = heldValues.map(transformer); - - return this; - } - - @Override - public <UnwrappedType> UnwrappedType unwrap(final Function<ContainedType, UnwrappedType> unwrapper) { - return unwrapper.apply(heldValues.randItem()); - } - - @Override - public String toString() { - return String.format("ListHolder [heldValues=%s]", heldValues); - } - - @Override - public int hashCode() { - final int prime = 31; - int result = 1; - - result = prime * result + (heldValues == null ? 0 : heldValues.hashCode()); - - return result; - } - - @Override - public boolean equals(final Object obj) { - if (this == obj) return true; - if (obj == null) return false; - if (!(obj instanceof ListHolder<?>)) return false; - - final ListHolder<?> other = (ListHolder<?>) obj; - - if (heldValues == null) { - if (other.heldValues != null) return false; - } else if (!heldValues.equals(other.heldValues)) return false; - - return true; - } -} |
